[ in-vet-er-it ]
/ ɪnˈvɛt ər ɪt /


settled or confirmed in a habit, practice, feeling, or the like: an inveterate gambler.
firmly established by long continuance, as a disease, habit, practice, feeling, etc.; chronic.

Nearby words

  1. investment compound,
  2. investment tax credit,
  3. investment trust,
  4. investor,
  5. inveteracy,
  6. inviable,
  7. invictus,
  8. invidious,
  9. invidiously,
  10. invigilate

Origin of inveterate

1375–1425; late Middle English < Latin inveterātus (past participle of inveterāre to grow old, allow to grow old, preserve), equivalent to in- in-2 + veter- (stem of vetus) old + -ātus -ate1; cf. veteran

Related formsin·vet·er·ate·ly, adverbin·vet·er·ate·ness, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for inveterate

British Dictionary definitions for inveterate


/ (ɪnˈvɛtərɪt) /


long established, esp so as to be deep-rooted or ingrainedan inveterate feeling of hostility
(prenominal) settled or confirmed in a habit or practice, esp a bad one; hardenedan inveterate smoker
obsolete full of hatred; hostile
Derived Formsinveteracy or inveterateness, nouninveterately, adverb

Word Origin for inveterate

C16: from Latin inveterātus of long standing, from inveterāre to make old, from in- ² + vetus old

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for inveterate



late 14c., from Latin inveteratus "of long standing, chronic," past participle of inveterare "become old in," from in- "in, into" (see in- (2)) + veterare "to make old," from vetus (genitive veteris) "old" (see veteran).

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for inveterate


[ ĭn-vĕtər-ĭt ]


Firmly and long established; deep-rooted.
Persisting in an ingrained habit; habitual.
Related formsin•veter•a•cy (-ər-ə-sē) n.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.